Process of producing diolefine hydrocarbons.



UNITED s'rnrns PATET orrioa.

FRITZ HOFMANN, KONRAD DELIBRC'CK, AND KURT MEISENBURG, OF ELBERFELD, GERMANY, ASSIGNORS TO FARBENFAIBRIKEN VORM. FRIEDR. BAYER & ('10., OF ELIBEBFELD, GERMANY, A CORPORATION OF GERMANY.

PROCESS OF PRODUCING DIOLEFINE HYDROCABBONS.

No Drawing.

Patented Dec. 31, 1912.

threne and which consists in heating a ina-.

cone, and more specifically the dihydric alcohol lmown itself as pinacone, with a neutral salt of a sulfonic acid which salt has an acid reaction.

The process proceeds according to the following equation:

0H. n, card-on one-c -2H:0+ l cu d-on car-c In order to illustrate the new process more fully the following example is given,.

the parts being by weight :1000 parts of pinacone are mixed with 1 part of the anilin salt of naphthalene1h0n0sulf0nic acid and the resulting mixture is heated to 130j-140 C. Dimethylerythrene and water dist-ilover besides pinacone hydrate and small quantities of inacolin. The beta-gamma-dimethyleryt rene isolated from the mixture boils at 68 to 69 C. Other of the above mentioned salts may be used e. g. the diphenylamin salt ot naphthalene-1.5-disulfonic acid etc.-

We claim:

1. The process of producing beta-gammadimethylerythrene, which comprises first distilling pinacone with a neutral salt of a. sulfonic acid which salt has an acid reaction and then separating the beta-gamma-dimethylerythrene, substantially as described.

2 The process of producing beta-gamma? dimethylerythrene, which comprises first distilling pinacone withthe anilin salt of naphthalene-monosulfonic acid and then separating the beta-gamma-dimethylery throne, substantially as described.

3. The process of producing beta-gammadimethylerythrene which comprises distilling pinacone with a neutral salt of a sulfonic acid which salt has an acid reaction.

4. The process of'producing beta-gammadimethylerythrene which comprises distilling pinacone with an anilin salt of an arcmatic sulfonic acid. 4

5. The process of producing beta-gamma dimethylerythrene which comprises distilling pinacone with an anilin salt of a naphthalene sulfonic acid.

6. The process of producing beta-gammadimethylerytlirene which comprises distillg pinacone with the anilin salt of naphthalene monosulfonic, acid.

7. The process of producingbeta-gammadimethylerythrene which comprises distilling pinacone with a neutral organic salt of a sulfonic acid which salt has an acid reaction.

8. The process of producing a diolefine hydrocarbon which comprises distilling a pinacone with a neutral salt of a sulfonic acid which sal has an acid reaction.

9. The pro ess of producing a diolefine hydrocarbon which comprises distilling a pinacone. with the anilinsalt of naphthalenemonosulfonic acid.

In testimony whereof we have hereunto set our hands in the presenceof two subscribing witnesses.

FRITZ HOFMANN. a 8.] KONRAD DELBRUOK. [11.8.] KURT MEISENBURQ. 1.5.

Witnesses:

HELEN Norma, ALBERT Nurnn. 

